Gedit doesn't like root

I just removed Totem to repalce it by MPlayer, which is suggested by Radio-Canada to read its video. I had many applications open, maybe I should have closed them... It finally took more than half an hour to install Mplayer and this, with yum-fastestmirror installed! Anyways, it might have nothing to do but, when I tried to edit /etc/yum/pluginconf.d/fastestmirror.conf as root afterwards, -- I thought verbose mode was preferable -- I received about 3 full screens of the following text: "GConf Error: Failed to contact configuration server; some possible causes are that you need to enable TCP/IP networking for ORBit, or you have stale NFS locks due to a system crash. See http://projects.gnome.org/gconf/ for information. (Details - 1: Failed to get connection to session: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.)" There seems to be a little problem here.